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Related Concept Videos

Long-term Potentiation01:35

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Potentiation01:25

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
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Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Neurochemical transmission, the conduction of electrical impulses between neurons mediated by neurotransmitters, plays a vital role in various physiological processes. Autonomic drugs exert their effects by modulating neurotransmission within the autonomic nervous system. For instance, drugs such as hemicholinium block the precursor uptake necessary for synthesizing acetylcholine, an essential autonomic neurotransmitter. Following synthesis, neurotransmitters are stored in vesicles. Metyrosine...

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Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience
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Decoding BDNF-LTP coupling in cocaine addiction.

Li-Min Mao1, Eugene E Fibuch, John Q Wang

  • 1Department of Basic Medical Science, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA.

Neuron
|October 5, 2010
PubMed
Summary
This summary is machine-generated.

Brain-Derived Neurotrophic Factor (BDNF) acts as a key regulator of synaptic and behavioral changes during cocaine sensitization. Upregulated BDNF in the medial prefrontal cortex enhances long-term potentiation and drives adaptations to psychostimulants.

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Psychopharmacology

Background:

  • Brain-Derived Neurotrophic Factor (BDNF) is crucial for neuronal survival, growth, and synaptic plasticity.
  • Synaptic plasticity underlies learning and memory, and is implicated in drug addiction.
  • Cocaine sensitization involves neuroadaptations in brain reward pathways.

Purpose of the Study:

  • To investigate the role of BDNF in mediating synaptic and behavioral plasticity during cocaine sensitization.
  • To identify the specific brain regions and mechanisms through which BDNF exerts its effects.

Main Methods:

  • Electrophysiological recordings in brain slices to measure synaptic plasticity.
  • Behavioral assays to assess psychostimulant responses.
  • Molecular techniques to analyze BDNF expression and signaling.

Main Results:

  • BDNF levels are upregulated in the medial prefrontal cortex during cocaine sensitization.
  • Increased BDNF facilitates long-term potentiation (LTP) in this region.
  • BDNF signaling is essential for the development of behavioral adaptations to cocaine.

Conclusions:

  • BDNF acts as a critical gatekeeper for synaptic and behavioral plasticity in the context of cocaine sensitization.
  • Targeting BDNF pathways in the medial prefrontal cortex may offer therapeutic strategies for substance use disorders.